Burst-signal reception circuit
US9628194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Jun 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/695
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A burst-signal reception circuit that receives a differential signal of a burst signal input via a preamplifier. The burst-signal reception circuit includes a differential amplifier to which the differential signal is input via capacitors, an average detection circuit that detects an average of a differential input signal to the differential amplifier, and a differential-offset cancel circuit that operates to cancel a DC voltage level difference of the differential input signal on the basis of output signals of the average detection circuit. Average detection speed of the average detection circuit is configured to be switched according to presence or absence of burst signal reception. The average detection speed is switched to a high-speed side in a head portion of the burst signal and switched to a low-speed side in portions other than the head portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.